May I give you just a quick, personal example? I worked in Alberta for three years with a municipality and had an instance where a contractor and a couple of workers complained about the fact that Mexican workers were not as committed to safety. We had a very detailed conversation about what was happening.
The Canadian standards on safety were so much higher that Mexican workers coming in and receiving the extent of safety equipment and apparatus that they were given probably had a perception that they were already much safer, not recognizing that the Canadian safety standards are that much higher.
Language absolutely comes into play. Literacy in English as a second language or French, in that environment, has a direct bearing on safety outcomes. If you cannot read it, if you cannot understand it, you cannot comply with safety requirements. It's that simple.